Anchorage



E. A. BLACK Feb. 19,1946.

ANCHORAGE Filed May 16 1945 w rma INVENTOR.

ER 1c A. BLACK ATTORNEY Patented Feb. 19, 1946 UNITE-o1 STATES PATENT OFFICE ANCHORAGE Eric A. Black, Red Bank, N. J.

Application May 16, 1945, Serial No. 594,144

, 4 Claims. (o1. 1s9-21) '(Granted under the act of March 3, 1883, as

,amended April30, 1928:3700. G. 757) The invention describedherein may be manufaetured and used by or for the Government for a It isan object of the present'invention to provide an anchorage which, after installation, may

be adjusted both longitudinally and laterally- It is a further object to provide suchan anchorage which may be adapted for use with various types of pile footings.

It is a further'object to provide such an anchorage which takes both tension and compression.

It is a still further object of the present invention to provide such an anchorage whichis simple inconstruction, relatively inexpensive to manufacture and easily adjusted.

,The-present inventionrresides generally in a longitudinally adjustable anchorbolt which is pivotably secured" at its lower end to apile' footing.

For a better understanding of the invention, together with otherand further objects thereof, reference is had to the following description, taken in connection with the accompanying drawing, and its scope will be pointed out in the appendedclaims. m

In the drawing, Figure 1 is a longitudinal cross section of one embodiment of the present invention wherein it is incorporated into a helical screw type pile footing and Figure 2 is a transverse cross section, along the line 2-2 of Figure 1.

With reference to the drawing, there is shown a helical screw type pile footing l l made-up of a circular pipe I 3, provided with a serrated lower extremity IS. A short distance above the lower end are a pair of outwardly extending, diametrically opposite, helical cutting fins l1. Extending outwardly radially from the'upper portion of the pipe l3 are a pair of pins I9.

Disposed diametrically through the pipe l3, at I a point intermediate the pins l9 and the fins I1 is a shaft 2| which is securely and rigidly fastened to the pipe l3, its ends being flush with the out side surfaceof said pipe. v f

Resting upon the upperend of the pipe I3 is a circular, washer-like, plate 23, of approximately twice the diameter of said pipe, which plate 23 is pierced by a single aperture. The upper surface of said plate 23 is provided with a rounded central concave surface 24. I

Disposed within the upper portion of the pipe l3 and extending upwardly, loosely through the plate 23, and beyond the upper end of said pipe, is an elongated anchor bolt 25. Said anchor bolt 25 is provided, at its lower extremity, with aneye 21 which v loosely encircles the transverse shaft 2l.- The upper end 29 of said bolt '25 is screwthreaded and is provided, immediately above the plate 23 with a loosely fitting washer 30, the lower.

face of which forms a rounded convex surface 28 to cooperate with the concave surface'24 afore-' mentionedand a nut 3|.

Threadedly coupled to the upper end of the anchor bolt 25 is an elongated, internally thread,- ed sleeve 33, theupper end 34 of which. is convexly' rounded. "The lower end of a short length of externally threaded rod 31 is threaded into the upper end of the sleeve 33 and then permanently welded in place therein so as to become integral with said sleeve 33. Said rod 31 is provided with a loosely fitting, annular bearing 39, such as of the oilite type, the under surface of which is provided with a rounded concave surface 4| .to cooperate with the rounded convex, upper end 34 of the sleeve 33. Said rod 31 is also' provided with a loosely fitting washer 43, the. upper surface. of' which is convexly rounded, a tension nut and a lock nut 41, one

- above the other in the order named.

. 'I 'he upper end of the rod 31 and the lock nut 41 are both pierced by transverse holes 38, 48, which may be'put into register by raising the nut a suitable distance, so that a short pin (not shown) may be inserted therethrough, by means of which the nut 41 may be locked to the rod 31. As shown in the drawing, there is secured to the anchorage a flange 49, which is secured to the lower end of one leg 5| of a tower (not shown).

The apparatus aforesaid should also be provided with a suitable means for screwing the pile footing into the ground. A conventional means .for that purpose is a short tubular member of a size to telescope over the upper end of the pipe I 3. Said tubular member is provided with two longitudinally disposed, diametrically opposite slots at its lower end and is also provided with a long bar, extending transversely through it. To sink the pile footing the tubular member just described may be fitted over the upper end of the pipe l3 so that the pins l9 fit into the slots. Said tubular member may then be rotated manually by means of the long transverse bar, so as to screw the pile footing H into the ground.

In the operation of the embodiment of the present invention described above, the helical screw pile footing H is first screwed into the ground to the desired depth. The nut 3| is then threaded upwardly a short distance so that the plate 23 free to slide over the top of the pipe l3. The washer 43 and the nuts 45, 4'! are removed from" the rod 31. The flange 49 of a tower legit may then be slipped onto the upper end of the rod 31 whereupon said washer 43 and the nuts 45, .41 may be replaced.

Longitudinal adjustment ofthe. tower leg may be accomplished by threading the lock nut 41 on the shaft 3'1 until the two holes 48, 38 are. in register and a pin (not shown) is inserted therethrough. The rod 31' and the sleeve33 integral with it, as explained above, may then be rotated by any suitable means, as by a wrench on said nut 41'. Such rotation causes the hearing 39 and the flange 49, resting upon it,.to be adjusted vertically as desired.

The anchor bolt may be moved universally about the shaft 2|, should any lateral adjustment of the tower leg '51 be required. When the lateral and longitudinal adjustments are finished; the nuts 3|, 45, 41' are tightened downwardly to lock the anchorage as so adjusted.

It will be noted that pivotable adjustment of the anchor boltf25 is facilitated by the rounded convex and concave surfaces. on the plate 2.3, the washers 43, the sleeve 33, and the bearing 39', already described. 7

Since many'changes may be made in the-above construction and many apparently widely different embodimentsiof this invention can be made without departing'from the scope thereof, it is intended thatall matter contained in the above description or shown in the accompanying drawingtshall be interpreted. as. illustrative and not in a limiting sense.

What is claimed is:

1. An anchorage fora structure. comprising a pipe having one and anchored in the ground and the other end free; a transverse shaft within said pipe; an elongated anchor bolt loosely secured at one end to said shaft for rotatable and longitudinal movement relative to said shaft andhaving its other end extending beyond the free end of said pipe, said portion so extending'being screw threaded; a washer-like plate about said bolt and disposed across thef'ree; end of said pipe and of greater diameter than said pipe; a nut threaded upon said bolt and adapted to urge said structure to said bolt.

washer against the free end of said pipe; an internally threaded sleeve upon said bolt; and means to secure a structure to said sleeve.

2. An anchorage for a structure comprising a helical screw type pile footing; a pipe, its lower end secured to said footing and its upper end open and above the ground level; a shaft secured transversely in said pipe; an elongated anchor bolt disposed within thepipe, one end extending beyond the open end thereof and the other end provided with an eye encircling the shaft aforesaid to allow said anchor bolt to rotate about and slide longitudinally along the said shaft, the end of. said. anchor bolt extending beyond the pipe being screw threaded and provided with a washer-like plate disposed against the open end of the-pipe and of greater diameter than the pipe; awasher .on said bolt; a nut and an internally threaded sleeve. threadably coupled to said bolt; the plate and the washer aforesaid being provided with cooperating curved surfaces to allow them to be angulated with respect'to' each other;

said sleeve being provided with a threaded rod nonrotatably secured thereto sai'd rod beingprovid'ed with a'bearing, a secondwasher-and a nut,

the bearing and sleeve beingiprovided with. 00"- operating curved surfaces to allow them to be angul'ated with respect to eachother, and the second washer being provided with a-conyex surface; and meansto rotate the sleevejto' adjust its position longitudinally relative" to the anchor bolt.

3. An anchorage'for' a structure comprising apipehaving one end anchored in the ground and the other end free, a transverse shaft secured within said pipe, an elongated anchor bolt loosely secured at one end to said shaft for rotatable and longitudinal movement relative to said shaft and having its other end extending beyond the free end of said pipe, a washer-like plate about said bolt and disposed across the free end of said pipe and of greater diameter than said pipe, means upon said bolt adapted to urge sai d washer against the free end of said pipe, and means upon said bolt beyond said plate to adjustably secure a 4. An anchorage for-a structure comprising a pipe having one end anchored in the ground and the other end free, an elongated'anchor bolt hav-; i-ng one end secured within said pipefor substan tially universal movement and having its other end extending beyond the free end of said pipe, a washer-like plate about said bolt and disposed across the free end of said pipe and of greater diameter than said pipe, means upon said bolt adapted to urge said washer against the free end of said pipe and means upon said bolt beyond said plate adapted to adjustably secure a structure to said bolt.

ERIC A. BLACK, 

